NOTE.The population at each census 1801 to 1831 is exclusive of the Army, Royal Navy, and Merchant Service at home and abroad; for 1841 the population includes the Army at home, men on shore belonging to the Royal Navy or to the Merchant Service and, in a few cases, persons on board vessels in harbours; the population at each census 1851 to 1921 includes the Army at home, men on shore belonging to the Royal Navy or to the Merchant Service, and all persons on board vessels in port on census night or arriving the following day. In 1921 the Air Force at home is also included.

* In computing the decennial rate of increase the varying lengths of the intercensal periods have been taken into account, and the rates for the periods 1831-41 and 1841-51 have been further corrected by the exclusion of the Army, Navy, and Merchant Service from the population for 1841, and of the persons on board vessels from the population for 1851.

 In computing the proportion of females to males, 1801-31, the following estimate of the numbers of men in the Army, Navy, and Merchant Service at home has been adopted: